class RasterDem extends Plugin
{
    onMapLoaded()
    {
        this.mapbook.map.addSource("dem", {
			type: "raster-dem",
			url: "mapbox://mapbox.terrain-rgb"
		});
		this.mapbook.map.addLayer({
				id: "hillshading",
				source: "dem",
				type: "hillshade"
				// insert below waterway-river-canal-shadow;
				// where hillshading sits in the Mapbox Outdoors style
			},
			"waterway-river-canal-shadow"
		);
    }
}
